sqldatasource

问题 So I have a GridView set up to a SqlDataSource. Paging is enabled and I have a drop down menu that changes the number of rows displayed per page. I am able get the total of rows displayed in a single page but I want to show the total number of rows as well. (Like this: "Showing 1 - 25 of 315"). So, my questions are: 1) How do I get the total number of rows for the entire DataSource? (not just GridView) The code I have, OnSelectedData method, does not work and returns a zero. 2) How do I get

问题 I have a SqlDataSource that is supplying data to my GridView. Thats all i am using on my form, thus i have NO code behind at all. But somewhere i need a TRY CATCH block just in case my connection get's lost. What code must i place where? If i get a error i want my lblMessage Text to be "No connection". Edit My GridView in my Machine.aspx <asp:GridView ID="GridView1" runat="server" AllowPaging="True" AutoGenerateColumns="False" Height="209px" PageSize="7" Width="331px" AllowSorting="True"

问题 So i currently have two combo boxes. One Being Manufacture the other being model. My sql query looks like this "Select Distinct Model From sheet1 where (Manufacture =@Manufacture)" this works when i execute it and if i were to fill a datagridtable. But if i try to place this into a combobox i get System.data.d...... etc for my selections. How can i just have it show the values instead of all this. What am i doing wrong? private void ManuComboBox_SelectedIndexChanged(object sender, EventArgs e

问题 If I bind GridView (via DataSourceID attribute) to SqlDataSource and set SelectCommand and UpdateCommand attributes, then everything works perfectly. But I’ve noticed that if I, for whatever reason, also manually call DataBind() inside Page_Load(), then SqlDataSource doesn’t perform any updates, even though SqlDataSource.Updating and SqlDataSource.Updated events do fire when GridView’s Update button is clicked. Could someone explain why updates don’t happen? 回答1: It's because the Page_Load is

问题 I want to cange the lables in my form according to particular value in rows. I just need how to iterate through table rows. 回答1: You can use SqlDataSource 's Select() method to retrieve data and then you can convert the result into a DataView or a DataReader . // Use the result as a DataView. var dataview = (DataView)SqlDataSource1.Select(DataSourceSelectArguments.Empty); foreach (DataRowView dataviewrow in dataview) { Label1.Text = dataviewrow["FirstName"].ToString(); } // Use the result as

问题 For a Gridview: I am trying to use a stored procedure for the first time in a SQLDataSource for the UpdateCommand: <asp:SqlDataSource ID="TECT_DataSource" runat="server" ConnectionString="<%$ ConnectionStrings:OracleConnectionString %>" ProviderName="<%$ ConnectionStrings:OracleConnectionString.ProviderName %>" SelectCommand="SELECT MPID, User_Id, Last_Name, First_Name FROM Scripts.vw_Tect_Exam" UpdateCommand="P_TECT_UPD_EXAM_ID" UpdateCommandType="StoredProcedure"> <UpdateParameters> <asp

问题 I'm having a problem. I want this to work, but it doesn't: SqlDataSource.SelectCommand = "SELECT blah1, blah2 FROM myTable WHERE @ColumnName = @Value"; SqlDataSource.SelectParameters.Add("ColumnName", System.Data.DbType.String, "one"); SqlDataSource.SelectParameters.Add("Value", System.Data.DbType.String, "two"); It won't substitue the first paramter "ColumnName." If I remove that parameter and place the column name in it like this, it will work: SqlDataSource.SelectCommand = "SELECT blah1,

问题 I'm trying to get data from SQL Server and use it in a formview, but the formview control won't get any data from the datasource. (The datasource gets parameter on page load) Output is just: "There is nothing to see here" and an empty table. Here is the datasource and formview tags: <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:igroup20_test2ConnectionString %>" SelectCommand="SELECT * FROM [member] where ([id] = @idd)"> <SelectParameters> <asp

问题 i want to update the records from the gridview using SqlDataSource , here is what i am doing. below is my gridview markup <asp:GridView ID="grdManageFaculties" runat="server" AllowPaging="True" AutoGenerateColumns="False" DataSourceID="LocalServerDataSource" AutoGenerateDeleteButton="true" AutoGenerateEditButton="true" Width="100%" OnRowUpdating="grdManageFaculties_RowUpdating"> <Columns> <asp:TemplateField HeaderText="MANAGE"> <ItemTemplate> <asp:LinkButton ID="lnkEdit" runat="server"

问题 I'm trying to set the value of the sqldatasource 's selectcommand parameter @ClientID as in the code below, but it's not working out. My code: Dim strCommand = "SELECT caller_id, phone, name, email FROM callers WHERE client_id=@ClientID" SqlDataSource2.SelectCommand = strCommand SqlDataSource2.SelectParameters.Add("@ClientID", iClientID) What am I doing wrong? 回答1: The trick to make it work is to remove the paremeter you are trying to use before adding it. The following adapted version of